Transient Analysis of ESD Protection Circuits for High-Speed ICs

静电放电 电气工程 瞬态(计算机编程) 二极管 电感 集成电路 瞬态电压抑制器 电子线路 炸薯条 可靠性(半导体) 工程类 电子工程 电压 计算机科学 功率(物理) 物理 操作系统 量子力学
作者
Javad Soleiman Meiguni,Jianchi Zhou,Giorgi Maghlakelidze,Yang Xu,Omid Hoseini Izadi,Shubhankar Marathe,Li Shen,Sergej Bub,Steffen Holland,Daryl G. Beetner,David Pommerenke
出处
期刊:IEEE Transactions on Electromagnetic Compatibility [Institute of Electrical and Electronics Engineers]
卷期号:63 (5): 1312-1321 被引量:12
标识
DOI:10.1109/temc.2021.3071644
摘要

Electrostatic discharge (ESD) failures in high-speed integrated circuits (ICs) cause critical reliability problems in electronic devices. Transient voltage suppressor (TVS) diodes are installed on high-speed I/O traces to improve system-level ESD protection. To protect the circuit, the majority of ESD current must flow into the external TVS diode rather than into the IC, but due to turn- on behavior, the TVS diode may not snap back when needed and the IC's internal protection may take most of the current. These race conditions between the internal and external ESD protection circuits were investigated for a universal serial bus(USB) interface board. The transient turn- on behavior of the on-chip and off-chip protection circuitry was characterized by measurements and by system efficient ESD design (SEED) simulations. The effect of transmission line pulses (TLP pulses) and power supply voltages of different sizes on the response of the protection circuitry were monitored and compared with SEED simulations. SEED models showed good agreement with measurements and were used to study the impact of passive components added to a high-speed trace or within the IC package on the ESD protection response. Results show the importance of properly accounting for the parasitic resistance and inductance between the on-chip diode and off-chip TVS diode, as well as the length of the transmission line when choosing the external TVS device. Results also show that testing must be performed using mid-level events to account for possible problems due to race conditions.

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